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b.sin = y/r jadi y= -1 r=5 x=√24
c.√3 = √3/1.. sec = r/x jadi r=√3 x=1 y= -√2
d.2 = 2/1 .. csc = r/y jadi r=2 y=1 x= -√3
e.2 = 2/1 .. tan = y/x jadi y=2 x=1 r=√5
f. 1 = 1/1 .. cot = x/y jadi x= -1 y= -1 r=√2
11. a. k=1 b. k = 1
cuma bisa itu saja yg nomer 10 tinggal hasilnya perbandingan trigonometri lain